Front face of filter cartridge housing



FIG. 1 is an upper front perspective view of a front face of a filter cartridge housing according to an embodiment of the invention.

FIG. 2 is a front view of the front face of the filter cartridge housing of FIG. 1.

FIG. 3 is a right side view of the front face of the filter cartridge housing of FIG. 1; the left side view of the front face of the filter cartridge housing is the mirror image of FIG. 3; and,

FIG. 4 is a top view of the front face of the filter cartridge housing of FIG. 1; the bottom view of the front face of the filter cartridge housing is identical to FIG. 4.

The structural elements shown in broken lines form no part of the claimed design. 

The ornamental design for a front face of a filter cartridge housing, as shown and described. 